Biology, Eighth Edition (Raven)

Chapter 16: Control of Gene Expression

Chromatin Remodeling

View the animation below, then complete the quiz to test your knowledge of the concept.



1.

The basic subunit of chromatin is...
A)DNA
B)nucleosome
C)histone proteins
D)HO gene
E)histone acetyltransferase
2.

Which of the following can physically block interactions between promoter DNA sequences and the proteins needed to initiate transcription?
A)RNA
B)nucleosome
C)histone proteins
D)HO gene
E)histone acetyltransferase
3.

During chromatin remodeling, which of the following is acetylated to loosen its contact with the DNA?
A)DNA
B)nucleosome
C)histone proteins
D)HO gene
E)histone acetyltransferase
4.

Chromatin rearrangement modifies the histone - DNA structure so that translation can occur.
A)True
B)False
5.

The activities of Swi/Snf and the histone acetyltransferase modify the chromatin structure of the HO promoter region into a more open conformation.
A)True
B)False
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Notice before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.